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Finding the Fourth Proportional to 18,885.20, 26,059.97 and 10,927.93

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Solution

The fourth proportional to 18,885.20, 26,059.97 and 10,927.93 is: 15,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.20 : 26,059.97 = 10,927.93 : x
  2. Step 2: Convert to fraction form
    18,885.20/26,059.97 = 10,927.93/x
  3. Step 3: Cross multiply
    18,885.20x = 26,059.97 × 10,927.93
  4. Step 4: Simplify right side
    18,885.20x = 284,781,490.13
  5. Step 5: Solve for x
    x = 284,781,490.13/18,885.20
  6. Step 6: Final answer
    x = 15,079.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.